It is an object of the present invention to have a method for aligning the optical axis of an optical fiber with the optical axis of an opto-electronic component and for fastening the optical fiber into the resulting relative position in relation to the opto-electronic component. This method includes the following steps: a slot is cut into a base, an optical fiber is disposed within the slot so that it touches neither the sides nor the bottom, a solidifiable product is deposited onto the optical fiber, a limited polymerization area of the solidifiable product is defined near the opto-electronic component, one part of the solidifiable product is partially solidified so as to allow the optical fiber a limited range of movement, the optical fiber is moved so as to align its optical axis with the optical axis of the opto-electronic component, the solidifiable product is completely solidified so as to fasten the optical fiber within the slot.